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Finding the Fourth Proportional to 158,177.50, 218,275.80 and 86,558.92

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Solution

The fourth proportional to 158,177.50, 218,275.80 and 86,558.92 is: 119,446.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,177.50 : 218,275.80 = 86,558.92 : x
  2. Step 2: Convert to fraction form
    158,177.50/218,275.80 = 86,558.92/x
  3. Step 3: Cross multiply
    158,177.50x = 218,275.80 × 86,558.92
  4. Step 4: Simplify right side
    158,177.50x = 18,893,717,510.14
  5. Step 5: Solve for x
    x = 18,893,717,510.14/158,177.50
  6. Step 6: Final answer
    x = 119,446.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.